public async void TestGetByIdAsync()
{
var options = new DbContextOptionsBuilder <ApplicationDbContext>()
.UseInMemoryDatabase(databaseName: "SchemaDatabase")
.Options;
var dbContext = new ApplicationDbContext(options);
var repo = new SchemaRepository(dbContext);
var json = "{id: 123}";
// Act
var newSchema = await repo.CreateAsync(new Schema { SavedDate = DateTime.Now, SchemaJson = json });
var createdId = newSchema.Id;
var searchResult = await repo.GetByIdAsync(createdId);
// Assert
Assert.True(createdId > 0 && searchResult.SchemaJson == json);
}